Takahashi, S., Tachiki, M., Modler, R., Gegenwart, P., Lang, M., & Steglich, F. (1996).
Theory of a generalized Fulde-Ferrell-Larkin-Ovchinnikov state in heavy fermion and intermediate-valence superconductors. Physica C, 263(1-4), 30-34. doi:10.1016/0921-4534(96)00037-8.